Kiichiro engages in research into new businesses in the fields of food, clothing, and housing. This includes artificial sweeteners, the cultivation of loaches, Western tableware, sewing machines, and precast concrete housing.

Kiichiro commenced research aimed at "sewing machines that are indispensable for making clothes," "safeguarding food supplies," and "housing that utilizes reinforced concrete parts, which are not by affected by the lack of wood--the traditional material used for building houses.